KR101111371B1 - Electrical connection member adapted to bring conductive paths formed in an insulating film into pressure contact with a connection object using inclined springs - Google Patents

Abstract

An elastic electrical connecting member adapted to be inserted therebetween for electrically connecting a first connecting object and a second connecting object, the inner member having a plurality of spring pieces each extending from a substrate portion, and flexible An outer film having an insulating film and a plurality of conductive paths formed in the flexible insulating film. Each of the conductive paths has a first contact portion and a second contact portion connecting to the connecting object. Each of the spring pieces includes a root portion formed adjacent to the substrate portion and facing a portion corresponding to the second contact portion among the inner surfaces of the intermediate portion of the insulating film. Each of the spring pieces also includes an inclined spring portion extending obliquely from the root portion and facing a portion of the inner surface of the intermediate portion that corresponds to the first contact portion.

Electrical connection member

Description

ELECTRICAL CONNECTION MEMBER ADAPTED TO BRING CONDUCTIVE PATHS FORMED IN AN INSULATING FILM INTO PRESSURE CONTACT WITH A CONNECTION OBJECT USING INCLINED SPRINGS}

The present invention relates to an electrical connecting member adapted to be inserted between two connecting objects in order to electrically connect the two connecting objects.

One example of this type of electrical connection member is disclosed in Japanese Patent Laid-Open No. 2006-228453 (Patent Document 1). The disclosed electrical connection member includes a plate-shaped base member, an elastic member respectively fixed to both sides of the base member, and a film member wound around the elastic member. Conductive paths extending between both sides of the base member are formed on the outer surface of the film member. Contacts are formed on both sides of the base member at both ends of each conductive path.

In use, the electrical connecting member is disposed between the two connecting objects, and then the two connecting objects are pressed in a direction approaching each other. Thus, the contacts come into contact with the connecting objects, which are electrically connected to each other through the conductive paths of the electrical connecting members.

However, according to the electrical connection member disclosed in Patent Literature 1, since electrical connection is obtained by simply press-contacting the contact portion and the connection object, when dust or foreign matter adheres to the connection object or contact portion, the contact between the contact portion and the connection object becomes unstable. As a result, problems occur when connecting the connection object and the contact portion.

Accordingly, a representative object of the present invention is to provide an electrical connection member having a function of removing contaminants or foreign matter on a connection object or contact portion.

Other objects of the present invention will become more apparent from the following description.

According to an exemplary aspect of the invention, there is provided an elastic electrical connecting member adapted to be inserted therebetween for electrically connecting a first connecting object and a second connecting object, wherein the electrical connecting member comprises an inner member and an outer member. And an inner member including a substrate portion and a plurality of spring pieces extending from the substrate portion, wherein the outer member collectively surrounds both ends and spring pieces respectively positioned on both sides of the substrate portion. Is a flexible insulating film having an intermediate portion, and a plurality of conductive paths formed in the intermediate portion, each conductive path comprising: a first contact portion connecting to a first connecting object, and a second connecting object connecting to a second connecting object. Two contact portions, each of the spring pieces being formed adjacent to the substrate portion and facing a portion corresponding to the second contact portion of the inner surface of the intermediate portion; It is provided with a root portion, and a sloping spring portion facing the inclined portion extending from the root portion, and corresponds to the first contact portion of the inner surface intermediate portions.

In the case of the electrical connection member according to the representative aspect of the present application, when connecting the first connection object and the second connection object to each other, the first contact portion is adapted to remove contaminants or foreign matter on the first contact portion or the electrode of the first connection object. By sliding on the first connecting object, the connection problem can be reduced.

By the electrical connection member of this application,

Since the electrical connection member has a function of removing dust or foreign matter, it is possible to reduce connection problems caused by contaminants or foreign matter,

Since the spring piece is in the form of a metal spring, a long service life can be expected when using an inspection connector that is repeatedly connected and disconnected.

By forming the bent portion at the distal end of the inclined spring portion of each of the spring pieces, it is possible to smooth the movement of the first contact portion and to prevent the damage of the insulating film due to excessive load,

Since the spring pieces operate independently of each other for each conductive path, excellent followability against deformation, warpage, etc. of the electrical connection member can be achieved, thereby improving connection reliability.

By increasing the size of each spring piece to correspond to a plurality of conductive paths, it is possible to solve the problem of reduced elasticity due to the miniaturization of the spring piece after miniaturization of the electrical connection member, thereby improving the connection reliability,

By arranging the elastic sheet on the inner surface of the insulating film so as to support the first contact portion by the spring portion inclined through the elastic sheet, the surface contact degree is large when the first contact portion contacts the electrode pad of the FPC. 1 It is possible to improve the contact reliability by preventing damage to the mutual contact surface of the contact portion.

With reference to the drawings, a connection device suitable for electrically connecting a first connection object and a second connection object to each other using an electrical connection member and one electrical connection member according to an embodiment of the present application will now be described.

1 to 6, the electrical connection member 1 according to the first embodiment of the present application includes a combination of an inner member 2 and an outer member 3 described in detail below. The inner member 2 is formed by punching a resilient metal plate, and a plurality of spring pieces 22 in the form of a square plate-like substrate portion 21 and a leaf spring extending from one side of the substrate portion 21, respectively. It is provided.

Each spring piece 22 has a root portion 22a extending from the substrate portion 21 and an inclined spring portion 22b extending obliquely after being folded back from the distal end of the root portion 22a. Outwardly convex portions 22c and 22d are formed in the root portion 22a and the inclined spring portion 22b, respectively. In particular, by providing the bent portion to the spring piece 22, the convex portion 22d of the inclined spring portion 22b is formed. In the spring piece 22, the convex portions 22c are arranged in two rows in a zigzag manner, and the convex portions 22d are arranged in a zigzag form in two rows, so as to space between adjacent convex portions 22c and between adjacent convex portions 22d. The spacing is set large enough to prevent short circuits.

On the other hand, the outer member 3 is provided with the flexible insulating film 31. This insulating film 31 is formed by bending one plastic film member. The insulating film 31 is equipped with the intermediate part 31a which surrounds the spring piece 22 as a whole. In particular, this intermediate part 31a is bent along the bending part which forms the convex part 22d in the inclined spring part 22b. Both end portions 31b of the insulating film 31 are respectively disposed on both sides of the substrate portion 21, and are fixed to the substrate portion 21 by fixing the tape member 4. The intermediate portion 31a is slightly gentle or curved.

A plurality of conductive paths 32 are formed in the middle portion 31a of the insulating film 31. Each conductive path 32 has a first contact 32a connecting to the first connecting object and a second contact 32b connecting to the second connecting object. The first contact portion 32a and the second contact portion 32b are exposed to the outer surface of the intermediate portion 31a of the insulating film 31, but the other portion of each of the conductive paths 32 corresponds to the corresponding formed in the insulating film 31. It passes through one through hole (not shown) and extends along the inner surface of the insulating portion 31a. The insulating elastic sheet 33 is adhered to the inner surface of the intermediate portion 31a of the insulating film 31 to cover the conductive path 32, thereby reinforcing the insulation.

The convex part 22c provided in the root part 22a of each spring piece 22 comes in contact with the part corresponding to the 2nd contact part 32b among the surfaces of the elastic sheet 33 in the intermediate part 31a. , The second contact portion 32b is supported. On the other hand, the convex part 22d provided in the inclined spring part 22b of each spring piece 22 corresponds to the 1st contact part 32a among the surfaces of the elastic sheet 33 in the intermediate part 31a. It comes in contact with the part, and supports the 1st contact part 32a.

Although the spring piece 22 corresponds one-to-one with the conductive path 32, the spring piece 22 may be configured such that at least one of the spring pieces 22 corresponds to the plurality of conductive paths 32 among all the conductive paths 32. have.

7 to 10, a plurality of connecting devices for electrically connecting the first connecting object and the second connecting object to each other using the electrical connecting member 1 are arranged in two rows in a zigzag and exposed on the upper surface thereof. The circuit board 6 which has the electrode pad 61 of this, and the guide member 7 mounted on this circuit board 6 are included. The electrical connection member 1 is partially sandwiched and fixed between the circuit board 6 and the guide member 7.

Here, FPC (flexible printed circuit) 8 is used as the first connection object. The FPC 8 has, at its end, a plurality of electrode pads 81 arranged in two rows zigzag and exposed at its bottom surface. The end portion of the FPC 8 is disposed on the exposed portion of the electrical connecting member 1 using the jig 9 and is pressed downward using the vertically movable pressing member 10. As a result, the electrode pads 81 of the FPC 8 are each press-contacted with the first contact portions 32a of the electrical connecting members 1. At the same time, the second contact portion 32b of the electrical connection member 1 is in pressure contact with the electrode pad 61 of the circuit board 6, respectively.

In this way, the FPC 8 is electrically connected to the circuit board 6 via the electrical connection member 1. That is, the electrical connection member 1 is inserted between the FPC 8 and the circuit board 6 and electrically connects them to each other. In this case, the circuit board 6 is called a second connecting object. This connection device can be used as an inspection device for checking the conduction state of the FPC 8.

The positional relationship between the electrical connection member 1, the circuit board 6, and the guide member 7 is determined by the positioning member 11. More specifically, the positioning pin 12 provided in the positioning member 11 is slidably inserted into the through hole provided in each of the electrical connecting member 1, the circuit board 6, and the guide member 7.

In FIG. 11, (a) the edge part of the FPC 8 is arrange | positioned at the exposed part of the electrical connection member 1, (b) the edge part of the FPC 8 is pressed against the exposed part of the electrical connection member 1, and is pressurized. The state is shown.

In Fig. 11, when the FPC 8 is pressed from the upper side to the electrical connecting member 1, the inclined spring portion 22b of each of the spring pieces 22 serves as a supporting point for the portion connected to the root portion 22a. Incline downward using. In this case, after moving the convex part 22d of the inclined spring part 22b, the part which contacts the convex part 22d of the elastic sheet 33, and the 1st contact part 32a of the insulating film 31 are carried out. Is slightly moved by the movement amount X to the right along the surface of the sheet to be pulled. Thus, the first contact 32a slides on the electrode pad 81 of the FPC 8 to remove contaminants or foreign matter on the first contact 32a or the electrode pad 81 (see FIG. 4). Will be performed.

According to the electrical connection member 1 mentioned above, the following advantage is acquired.

1. Since the electrical connection member 1 has a function of removing dust or foreign matter, it is possible to reduce connection problems caused by contaminants or foreign matter.

2. Since the spring piece 22 is in the form of a metal spring, a long service life can be expected when using an inspection connector or the like that is repeatedly connected and disconnected.

3. By forming a bent portion at the distal end of each inclined spring portion 22b of each spring piece 22, the movement of the first contact portion 32a is smooth and the damage of the insulating film 31 due to excessive load is prevented. can do.

4. Since the spring pieces 22 operate independently of each other for the conductive paths 32, the coping ability with respect to deformation, warpage, etc. of the electrical connection member 1 is excellent, and connection reliability can be improved.

5. By increasing the size of each of the spring pieces 22 to correspond to the plurality of conductive paths 32, solving the problem of reduced elasticity due to the miniaturization of the spring pieces 22 after the miniaturization of the electrical connecting member 1, Connection reliability can be improved.

6. The first contact portion 32a is disposed by arranging the elastic sheet 33 on the inner surface of the insulating film 31 so as to support the first contact portion 32a by the inclined spring portion 22b through the elastic sheet 33. ) Is in contact with the electrode pad 81 of the FPC 8 so that the degree of surface contact is large, preventing damage to the mutual contact surfaces of the electrode pad 81 and the first contact portion 32a, thereby improving contact reliability. .

With reference to FIG. 12, the electrical connection member which concerns on 2nd Embodiment of this application is demonstrated. Since the same or similar parts are denoted by the same reference numerals, the description thereof will be omitted.

In the electrical connection member 1 demonstrated using FIGS. 1-6, the inclined spring part 22b of each spring piece 22 is folded back with respect to the root part 22a, and is bent large. On the other hand, in the electrical connection member 1-1 used for the connection device shown in FIG. 12, the inclined spring portion 22b of each of the spring pieces 22 extends slightly relative to the root portion 22a so as to extend forward. Bent

According to the electrical connection member 1-1, the advantage corresponding to the electrical connection member 1 demonstrated using FIGS.

With reference to FIGS. 13-16, the electrical connection member which concerns on 3rd Embodiment of this application is demonstrated. Since the same or similar parts are denoted by the same reference numerals, the description thereof will be omitted.

In the electrical connection member 1 demonstrated using FIGS. 1-6, the convex parts 22c and 22d of the spring piece 22 are each arrange | positioned in zigzag. On the other hand, in the electrical connection member 1-2 shown to FIGS. 13-16, the convex part 22c, 22d of the spring piece 22 is arrange | positioned linearly, respectively. Thus, the first contact portion 32a and the second contact portion 32b are also arranged linearly, respectively. The other structure is the same structure as the electrical connection member 1 described in FIGS. 1 to 6.

According to the said electrical connection member 1-2, the advantage corresponding to the electrical connection member 1 demonstrated using FIGS. 1-6 is acquired.

Any of the electrical connection members described above can be used not only as an inspection device for inspecting the conduction state of FPC or the like, but also as a component of various connectors.

Various representative embodiments of the present application are listed in items 1 to 8 below.

1. An elastic electrical connecting member 1, adapted to be inserted therebetween for electrically connecting the first connecting object 8 and the second connecting object 6 to each other,

The electrical connecting member comprises an inner member 2 and an outer member 3,

The inner member 2 is

A substrate portion 21, and

A plurality of spring pieces 22 extending from the substrate portion 21, respectively,

The outer member 3,

A flexible insulating film 31 having both end portions 31b respectively positioned on both sides of the substrate portion 21, and an intermediate portion 31a surrounding the spring pieces 22 as a whole;

And a plurality of conductive paths 32 formed in the intermediate portion 31a,

Each of the conductive paths 32 is

A first contact portion 32a connecting to the first connecting object 8, and

It is provided with the 2nd contact part 32b which connects to the 2nd connection object 6,

Each of the spring pieces 22,

A root portion 22a formed adjacent to the substrate portion 21 and facing a portion of the inner surface of the intermediate portion 31a corresponding to the second contact portion 32b, and

It is provided with the inclined spring part 22b extended inclined from the said root part 22a, and facing the part corresponding to the 1st contact part 32a among the inner surfaces of the intermediate part 31a.

2. The electrical connecting member according to item 1, wherein the inclined spring portion 22b includes a convex portion 22d facing the portion corresponding to the first contact portion 32a, and the insulating film 31 is It is bent along this convex part 22d.

3. In the electrical connection member according to item 1, the spring piece 22 corresponds one-to-one to the conductive path 32.

4. The electrical connection member according to item 1, wherein at least one of the spring pieces 22 corresponds to one of the conductive paths 32.

5. The electrical connection member according to item 1, wherein the outer member 3 includes an elastic sheet 33 disposed on an inner surface of at least the intermediate portion 31a of the insulating film 31, and the spring piece 22 ) Each contact this elastic sheet 33.

6. In the electrical connection member according to item 1, the root portion 22a is in contact with the outer member 3 to support the second contact portion 32b, and the inclined spring portion 22b is the first contact portion 32a. Abuts against the outer member (3).

7. In the electrical connection member according to item 1, the fixing member 4 for fixing both ends of the insulating film 31 of the outer member 3 to both surfaces of the substrate portion 21 of the inner member 2, respectively. It further includes.

8. In the electrical connection member according to item 1, the inner member 2 is formed by punching an elastic metal plate.

Although the present invention has been particularly shown and described with reference to the exemplary embodiments thereof, the present invention is not limited to the above embodiments. It should be understood by those skilled in the art that various changes in form and details may be made without departing from the spirit and the scope of the invention as defined by the claims.

1 is a perspective view of an electrical connection member according to a first embodiment of the present application;

2 is an exploded perspective view of the electrical connection member of FIG. 1, FIG.

3 is a perspective view illustrating a part of an inner member included in the electrical connection member of FIG. 1;

4 is a side view of the electrical connection member of FIG. 1;

5 is an enlarged cross-sectional view taken along the line VV of FIG. 4;

6 is a perspective view of an outer member included in the electrical connection member of FIG. 1, FIG.

7 is a side cross-sectional view of a connecting device before use including the electrical connecting member of FIG. 1;

8 is a side cross-sectional view of the connecting device of FIG. 7 in use;

9 is an exploded perspective view of FIG. 8;

10 is a perspective view showing a state of the connecting device of FIG. 7 in use, with a part of the component removed;

Fig. 11 is an enlarged cutaway view of a representative main part of the connecting device shown in Figs. A drawing in a state of being pressed against the exposed portion of the member,

12 is a cutaway view showing only a main part of a connecting device including an electrical connecting member according to a second embodiment of the present application;

13 is a perspective view of an electrical connection member according to a third embodiment of the present application;

14 is a side view of the electrical connection member of FIG. 13;

15 is a perspective view of an inner member included in the electrical connection member of FIG. 13, and

FIG. 16 is an enlarged perspective view showing only main parts of the inner member of FIG. 15; FIG.

Explanation of reference numerals for the main parts of the drawing

1: electrical connection member

2: internal member

3: outer member

4: tape member

6: circuit board

7: guide member

8: FPC

21: substrate

22: spring piece

31: insulation film

32: conductive path

Claims (8)

An elastic electrical connecting member, adapted to be inserted therebetween for electrically connecting a first connecting object and a second connecting object to each other, The electrical connecting member includes an inner member and an outer member, The inner member, A substrate portion, and A plurality of spring pieces each extending from the substrate portion, The outer member, A flexible insulating film having both end portions positioned on both sides of the substrate portion, and an intermediate portion surrounding the spring pieces as a whole; and It has a plurality of conductive paths formed in the middle portion, Each of the conductive paths, A first contact portion for connecting to the first connecting object, and And a second contact portion for connecting to the second connecting object, Each of the spring pieces, A root portion formed adjacent to the substrate portion and facing a portion corresponding to the second contact portion among the inner surfaces of the intermediate portion, and And an inclined spring portion extending obliquely from said root portion and facing a portion of the inner surface of the intermediate portion corresponding to the first contact portion. The electrical connection member according to claim 1, wherein the inclined spring portion includes a convex portion facing a portion corresponding to the first contact portion, and the insulating film is bent along the convex portion. The electrical connection member of claim 1, wherein the spring piece corresponds one-to-one to the conductive path. 2. The electrical connection member of claim 1 wherein at least one of the spring pieces corresponds to one of the conductive paths. The electrical connection member according to claim 1, wherein the outer member includes an elastic sheet disposed on an inner surface of at least an intermediate portion of the insulating film, and each of the spring pieces is in contact with the elastic sheet. 2. The electrical contact member of claim 1 wherein the root portion is in contact with the outer member to support the second contact portion, and the inclined spring portion is in contact with the outer member to support the first contact portion. The electrical connection member according to claim 1, further comprising a fixing member for fixing both ends of the insulating film of the outer member to both surfaces of the substrate portion of the inner member. The electrical connection member according to claim 1, wherein the inner member is formed by punching an elastic metal plate.

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